Experiment
← Apple iPhone, iPad, iPod | Alternative Energy-Electric Cars → |
Introduction:
During the experiment potentiometer is arranged in a manner that makes it possible for ADC to be carried out. Values obtained from ADC are changed to digital. This is then transferred to LCD to be displayed.
Various codes were developed to aid in the experiment. They include:
Put the code here
Variable ‘adc_value’ refers to the value of the adc returned by the function ‘read_adc()’. POT means 0x48 representing the pot in the ADCON0 which is sent to variable ‘setup adc’. This helps in setting up the adc and starting the ADC as it sets ADON=1. Meanwhile, loop 1 wehich is the fuction read adc reads values for adc. The return is stored in variable ‘adc value’. It is in the function that variables are defined while GO=1 is positioned to begin conversion. Till the conversion is over, GO==1 plays a major role.
Once the changing/convertion is over num is where the obtained data is transferred to. It is then taken back to the main function. The value adc is transferred to LCD to be displayed. After this, the whole systems/the program goes back to the main function performing similar operations of constantly reading adc values.
Result & Conclusion: It is established that the entire program was free from errors. Additionally the program was put into test through developmental boards. The exercised generated a program that was capable of setting up adc, reading data from the adc values, converting them to digital and showing the results through LCD. This can be seen in the figure shown below;
TAKE THE PICTURE OF THE LCD AND PUT IT HERE AKHI
In conclusion, the experiment was a success in teaching how to go about setting up of adc as well as using microcontroller in taking readings from potentiometer as well as displaying it via LCD.
Exercise 2:
Aim:
- To standardize the ADC
- To compute the resolution of ADC at different within the curve
- To compute errors in percentages of the points within the
Introduction: the experiment entails calibration of ADC. This is done by taking records of varying outputs of potentiometer. For instance at 0 Volt adc value which corresponds with it is recorded. From the outcome atable is generated which in turn help in obtaining adc. A formula for adc resolution is input voltage/digital ouput of adc. For instance at 5 volts at 1023 maximum digital out put; adc resolution is 5/1023=0.0048875
Conclusion: it is established that differing values of results from potentiometer, the corresponding ADC values after measuring and tabulation shows that adc resolution is 0.0048875.
Exercise 3:
Aim:
- To change the program developed in exercise 1 to show real voltage as read from potentiometer through the LCD
Introduction: the experiment is carried out like in experiment 1. And data is shown via LCD. However, instead of convering the data into digital, it is changed into analog value then showed via LCD. Conversion of adc value to the equivalent voltage was done by use of the formula; Analog=(adc_value/100) * (493.1034/10);
Major codes of the program:
In order to show the values obtained (voltage) through LCD ‘analog’ as a variable is transferred into the function labelled ‘display_voltage_value’. It is worth noting that this conitunes while the code enclosed in loop 1.
Result and Conclusion: The experiment entailed modification of experiment 1 in order to depict voltage read from the potentiometer on the LCD. The whole exercise worked without errors and attained it objectives of showing adc values and voltage on LCD
Exercises 4:
Aim:
- To adjust the program in the experiment to utilize LDR rather than potentiometer
Introduction: Resistors that depend on light do generate electric volt once an incident light fall on the resistor. LDR is linked to developmental board. It is worth to note that the set up of the program is similar to that in experiment 1. Nonetheless, it is different in terms of initialization of ADCON0 register. For this experiment ADCON0 is set at 0x80. ADC is switched on by utilizing ADON=1
Following is the main code:
Put the code here
The rest of the processe is similar as that carried previously in loop 1. The function adc reads the values adc from LDC. It eventually takes back the value to the program where adc value is stored. The program is distinct from the previous one as adc values are sent to PORTB lighting up LEDs representing adc values from LDR. This happens continuously since it is enclosed in loop 1.
Result and Conclusion: the experiment used LDR in accepting outputs as well as performing conversion of adc values to be shown in LEDs of the PORTB. The program was free of error and worked well in attaining the objectives. To establish that the program was working, it was observed that with varying fall of incident light on the resistor, there were varying values on LEDs.
Main Conclusion:
Various appliances that are analog need to be interfaced to a microcontroller for us to make calculations. In order to attain this, there is need of converting analog data into digital through adc conversion. A greater foundation is on use of adc program by help of LDR and potentiometer.
- Alternative Energy-Electric Cars
- Computer Engineering
- Apple iPhone, iPad, iPod
- Working with Computers
![]() |
Melissa C.
Rochester, NY
|
|
I am completely satisfied with the paper I purchased from your company. I only wish I had known about you last year when I took an F grade for not being able to complete a paper on time. The work you did was marvelous. Whenever I find myself falling behind in my school work, I will be sure to pass along some of my more difficult written assignments to you |
![]() |
Grace T.
Purcell, OK
|
|
Thank you for assuring that only the best writers work for you. It doesn’t matter which writer has been assigned to my projects since I started using your services. Every time I get a paper written, it is perfect. |
![]() |
Alexandra Z.
Dallas, TX
|
|
I am sitting here reading over what your writing service offers and I just realized that you are the only one that offers free rewrites and full guarantees on your work. This tells me that you are an honest company that I want to do business with. |
![]() |
Willow P.
Park City, UT
|
|
You guys do top-notch work. Time after time, I have had to rely on your help and I can say honestly that you have never let me down. Thank you so much for coming through for me every time. I am not a good writer. I try. I study hard, but when I need help, you are always there to give it to me at an affordable price. |
![]() |
Cleo P.
Oakland, CA
|
|
I submitted my order as a ‘rush order’. I only had 2 days to get my paper finished and I just felt like I was sinking. I didn’t understand the material I was writing about, and I didn’t know what I was going to do. My friend recommended EssaysEmpire.com. I had very little lost by attempting to use this writing service, so I did. It was an excellent move on my part, because, not only was my paper finished on time. It was also excellently written. I will always be grateful to my friend for recommending your service. It is wonderful. |
![]() |
Quincy S.
Cambridge, MA
|
|
You guys did a super job on my paper. The work definitely exceeded my expectations and eased my anxiety. This was the first time I had hired a writing service. The transaction was seamless. I would use you guys again in a heartbeat! No questions asked. You’re the best, hands down. |
![]() |
Steve P.
Portland, OR
|
|
I am beginning to understand why your writing service was recommended to me so highly. Everything you do is a cut above your competition. You’re really great! |
![]() |
Mark M.
Cambridge, MA
|
|
The paper I ordered from EssaysEmpire.com is incomparable! Thanks for doing such stellar work. I have recommended your services to a few other folks who plan to try you out soon. EssaysEmpire.com gets my vote for best writing service every time. |
![]() |
Maddie P.
Seattle, WA
|
|
The EssaysEmpire.com website is so great! There are no mysteries to be solved. They give you the full layout about what they have to offer and how much it costs. No surprises. I had a couple of questions about the different options and their customer service rep was so friendly! She answered all my questions. I ordered my first paper and it was so well written that I got an A+ on it! Thank you, EssaysEmpire.com! |
![]() |
Kris K.
San Francisco, CA
|
|
I would like to say thanks to writer #48376 for doing such an astonishing job on my paper. I really gave him very little to go on. Still, he was able to do the research and come up with a champion paper for me. I am speechless. I didn’t expect anything nearly this good. |
![]() |
Hillary M.
Santa Cruz, CA
|
|
I received 100 points out of a possible 100 for the paper that you wrote for me. |
![]() |
Bruce B.
Purcell, OK
|
|
I had a hard time articulating what my professor wanted, so I was able to speak straight to my writer. After I had explained a little bit, I could tell he understood everything. He then took the ball and ran with it, so to speak. He wrote my paper in two days and it was the picture of perfection! I am very grateful that he knew what to do and how to do it so perfectly. |
![]() |
Bruce R.
Tulsa, OK
|
|
Thanks for everything. You guys know how to write so well! I will call on you again in the future. |
![]() |
Terry M.
Sparta, NJ
|
|
I got an A+ on the paper that you guys wrote for me. I can’t believe it! THANKS!!!! Many, many thanks! This A+ added those few extra points that I needed to stay on the Dean’s Honor List. You’re the greatest, EssaysEmpire.com! |
![]() |
Ohjasi O.
Tokyo, JP
|
|
The essay that your writers turned out for me far exceeded what I was expecting. It even came with a plagiarism report to prove that it was original. The customer service center was the picture of perfection, too. I loved everything about using EssaysEmpire.com and plan to use your services again. You are one class act! |
![]() |
Doreen A.
Malibu, CA
|
|
Due to a family emergency, I was unable to complete a very important paper. Thanks to EssaysEmpire.com, I was able to hand in a well written paper and not sacrifice my grade. I will be forever grateful to your writing service for providing such outstanding work. Thank you so much. |
![]() |
John G.
Erie, PA
|
|
Thanks goes out to the writers who presented me with the best paper I have ever turned in. My professor was so impressed with it that he took excerpts from it to put in his class handouts on how to write the perfect paper. EssaysEmpire.com, you made me one proud student today! |
![]() |
Gaia W.
Lexington, OK
|
|
EssaysEmpire.com gets an A+ for being the best writing service a student could ever ask for! Thank you for your continued high quality work, guys. I have purchased 6 papers from you over the last two years and they have been exquisite in their workmanship and content. I really appreciate how hard you guys work to please your customers. I’m not surprised that you are reported to be the best writing company online or off. To me, you are exactly that. |
![]() |
Zola R.
Salulita, MX
|
|
The paper that I bought from EssaysEmpire.com was a whole lot better than I thought it would be. Thank you for the excellent service and product. I will be happy to recommend you to my friends. |
![]() |
Jaffar M.
Salt Lake City, UT
|
|
My sincere thanks for a job well done. My professor loved my paper and commended me for handing in the one that your writing service helped me with. The paper flowed very well. It was logical and intelligent-sounding. I was very pleased overall. |